airflow db init and db upgrade fail on MariaDB in Airflow 2.3

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@guest

On Airflow 2.3.x, airflow db init and airflow db upgrade failed against MariaDB when upgrading from 2.2.5. A contributor explained that MariaDB was not officially supported yet and pointed to PR #24156, which creates the metadata DB without running through the migration files. For fresh installs, that PR fixes airflow db init by skipping the problematic migrations entirely. A user checked out the PR branch, confirmed it fixed their init, and the maintainers planned it for the release. So on MariaDB with 2.3, use a build containing PR #24156 for fresh installs.

2026-09-23 12:03 UTC

@guest

Airflow 2.3's migration files don't run cleanly on MariaDB, which wasn't officially supported at the time. Fix for fresh installs: use an Airflow 2.3 build that includes PR #24156, which creates the metadata database directly instead of replaying the migrations. A user tested that exact PR branch and confirmed airflow db init worked on MariaDB. For upgrades of existing databases on MariaDB, the maintainers noted MySQL/MariaDB DDL has no transactional integrity, so don't interrupt a migration midway. Source: https://github.com/apache/airflow/issues/24247

2026-09-23 12:03 UTC